Round can be used for decimal fields that have no assigned QFIELDNAME or CFIELDNAME fields. Its purpose is to move decimal places left or right. If you want to move decimal places left, then you have to put there positive numbers, if you want to move decimal places right, then use negative numbers.

Example when you use 0 as round, you’ll get the normal full numbers, the display of the field hasn’t changed.

Figure 29 ZDEMO_AIN_CL12 Results using 0 as P_ROUND value

Now the same program is run with 3 that is inserted into ROUND. You can notice that instead of 2 571,25 you can see 2,5723, so the comma sign was moved left by 3 positions.

Figure 30 ZDEMO_AIN_CL12 Results with 3 as P_ROUND value

Also changed output is visible when you use negative values. This time -5 was used. You can see on image below that instead of 2 571,25 you can see 275 225 000.

Figure 31 ZDEMO_AIN_CL12 Results with -5 as P_ROUND value

In each case the value in the internal table was the same 2 571,25.

QFIELDNAME has the same meaning for quantity fields, like CFIELDNAME for amount fields. This means that we can setup in which column of internal table the information about unit of measure is kept. On the base of that information, data can be displayed differently in each row, as in comparison to QUANTITY the unit is not set for the whole column. In program ZDEMO_AIN_CL11 I’ve setup column DISTID to be used as QFIELDNAME for DISTANCE.

Figure 27 ZDEMO_AIN_CL11 FCAT with QFIELDNAME

As you can see in the Figure 27, the quantity is displayed differently on first and second row. This means that our field catalog setting is working correctly.

Figure 28 ZDEMO_AIN_CL11 Results using QFIELDNAME

This field is used to setup exponent number display for floating point decimals (F) fields. Although it’s not that commonly used field type for display, then it’s important to know that you can manipulate how the field is displayed in ALV grid.

For example, the picture below, shows the results of the ALV output when EXPONENT field was set to 2.

Figure 32 ZDEMON_AIN_CL13 Results with P_EXP parameter value set to 2

On next picture the results of the ALV output when EXPONENT field was set to 3.

Figure 33 ZDEMO_AIN_CL13 Results with P_EXP parameter value set to 3

As you have noticed the value 2 572,25 that you can find in the internal table, will be shown differently but it’s showing exact the same number.

If you want to setup current field as a key one, you need to fill KEY with ‘X’. When you’ll do this then the field will have blue background and during horizontal scrolling the column will be fixed.

Figure 34 ZDEMO_AIN_CL14 Results with CARRID field set as key one